Minutes of the Geneva AMS group meeting on May 23, 2000
Geneva AMS group meetings
Thanks to Manfred and Philipp, there are 4 full hybrid pairs v1.8. There is
the possibility to built a new one. Also 2 pairs has been sent to IDEAS to
test the assembly line. So there will be 5 pairs to place them at the
preserie. At Perugia they will use an old AMS01 hybrids. Wrt assembly, it is
expected the final IDEAS offer in a couple of weeks.
New hybrid: P. Bene reports that the schematic is almost finished (one
working day). Photochemics can do the over elevation for kapton (demanded by
Amplifiers on hybrid. Some test has been done with the JPR approach. It has
been tested @2MHz and @5MHz. In this last test the signal (over 40MIPS) has
not time to rise completely. A new test with the IDEAS ampli (less input
impedance) will be done to test if the problem comes frome the VA of from the
THis afternoon there will be a meeting with the HUG people about the
radiation test. Also there will be a radiation test in Madrid to test the
ADC during second half of june.
Cable and conectors:
No news....good news? For conectors, still waiting AIRBORNE offer.
At the end of this week will rebegun at CERN the K5 and K6
modifications. When these modification will be finished there will produced
some prototypes. (~50 pieces in big numbers??)
Ni business: Some ladders from SMD and AMS-01 will be tested to check the
quality of the bonding with an "automatic" machine at a Neuchatel company
Hard and software list:
- When?: 21st-26th July 2000
- Where?: SPS West area (TRD main users)
- Why? : Basically to be sure that everything is under control. It will be
measured: S/N vs strip length and theta angle, clustering (K side) and
charge collection adn spatial resolution vs theta.
|beam telescope || P. Weilhammer?
|Ladder w special bonding || D. Vite, Ph. Azzarello
|TDR test board || G. Ambrosi
|Power Supply || G. Ambrosi
|Trigger Logic || D. Rapin
|Cables || P. Bene?
|PCs || P. Emonet
|DAQ software || P. Emonet
|Quasi-online monitoring || E. Cortina
Besides the people on the list there will be involved the rest of Geneva AMS
group (M. Pohl and M. Cristinziani and two students S.Fassel+summer student)
and also invited Perugia people.
This topic will be discussed at Perugia meeting. The main worry at this
momnet is the availability of ladders. It has been proposed to use at least
three ladders: 1 from Perugia (new silicium old electronics), 1 from Geneva
(new silicium new electrinics) and 1 from AMS01 (old silicium new
electronics), where new electronics means hybrid v1.8 and old TDR test board.
- Geneva AMS group meeting: May. 30 , 2000, 10am, Ecole de Physique
- Tracker meeting: Jun 12-13, 2000. Hotel Gio-Perugia. Everybody
- PRD: June 2000, KSC.
- AMS electronic meeting: Jul 7-10, 2000, Taiwan. GA,ECG.
E. Cortina, May, 23, 2000